tree 9a919bf5de8444b5e14d1d4e738faa4dc0062312
parent 5e9c4ed903c39f82f28362d9411d4dbc491264ec
author Stefan Schulze Frielinghaus <stefansf@linux.ibm.com> 1664378831 +0200
committer Stefan Schulze Frielinghaus <stefansf@linux.ibm.com> 1664378831 +0200

cselib: Keep track of further subvalue relations

Whenever a new cselib value is created check whether a smaller value
exists which is contained in the bigger one.  If so add a subreg
relation to locs of the smaller one.

gcc/ChangeLog:

	* cselib.cc (new_cselib_val): Keep track of further subvalue
	relations.